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<br />FINAL COVER MAINTENANCE
<br />Grading and Maintenance (annual)1 EA 37,761$ 37,761$ Table 3A
<br />Vegetation control (Annual grazing by sheep)185 ACRE 234.60$ 43,402$
<br />Subtotal 81,163$
<br />LEACHATE MANAGEMENT
<br />Leachate Collection System Operation and Monitoring 12 EA 3,805$ 45,660$ Table 3B
<br />Leachate system maintenance 1 LS 10,800$ 10,800$ Table 3B
<br />Subtotal 56,460$
<br />LANDFILL GAS MIGRATION MONITORING
<br />Replace Perimeter Migration Monit Wells (over 30-year Post Clo Maint)18 LS 40,000$ 24,000$
<br />Perimeter Migration & Vadose Zone monitoring (quarterly) 4 QTR 1,113$ 4,451$
<br />Subtotal 28,451$
<br />LANDFILL GAS COLLECTION AND CONTROL
<br />LFG Collection Well Field operation & monitoring (monthly)12 EA 1,222$ 14,662$
<br />Surface emission monitoring 1 LS 35,574$ Table 3J
<br />Replace flare station (once in 30-year post-clo period)1 LS 1,500,000$ 50,000$ Table 3H
<br />Replace LFG well heads & laterals (in 30-year post clo period)1 LS 1,259,236$ 41,975$ Table 3H
<br />Electrical Power (annual)1 LS 65,084$ 65,084$ Table 3I
<br />Flare Stack Test 1 EA 4,500$ 4,500$
<br />Permitting (AQMD and RWQCB)1 LS 33,292$ 33,292$ Table 3K
<br />Subtotal 245,087$
<br />Groundwater Monitoring & Reporting - Consulting Services 1 LS 33,481$ 33,481$
<br />Groundwater - Sampling & Testing 1 LS 19,463$ 19,463$
<br />Replace Groundwater Monitoring Wells 11 EA 65,000$ 23,833$
<br />Groundwater Monitoring Well Maintenance 11 EA 483$ 5,313$ Table 3E
<br />Surface Water Sampling 2 EA 726$ 1,451$ Table 3G
<br />Surface Water Analysis 1 LS 3,000$ 3,000$
<br />Vadose zone monitoring - see LFG Migration Monitoring
<br />Subtotal 86,542$
<br />DRAINAGE
<br />Inspection 48 HRS 95$ 4,572$
<br />Drainage repair - see Final Cover Grading and Maintenance
<br />MISCELLANEOUS
<br />Site security 1 LS 5,000$ 5,000$
<br />Inspections and Record Keeping 4 QTR 2,375$ 9,500$ Table 3F
<br />Permitting and Administrative Costs 1 LS 32,559$ 32,559$ Table 3K
<br />Storm Water inspections and reporting - Consultant 1 LS 5,000$ 5,000$
<br />Settlement Analysis 1 LS 4,000$ 4,000$
<br />Decommissioning No monitoring items will be decommissioned
<br /> Subtotal 60,631$
<br />ESTIMATED ANNUAL POSTCLOSURE COST 558,333$
<br />CONTINGENCY (20%)111,667$
<br />TOTAL ESTIMATED ANNUAL POSTCLOSURE COST 670,000$
<br />TOTAL COST OVER 30 YEARS 20,100,000$
<br />All costs are in 2024 dollars.CY = cubic yard EA = Each
<br />Notes QTR = Quarter LS = lump sum
<br />UNIT COSTS - Most unit costs are based exisitng contracts from
<br />t t d lt t d b th C tGROUNDWATER, VADOSE AND SURFACE WATER MONITORING -
<br /> LEACHATE MANAGEMENT - Each module/lined area will have a
<br />sump, pumped automatically and sampled quarterly
<br />SETTLEMENT ANALYSIS - Current surveyor contract - analysis every five years plus analysis of difference between topos
<br />GROUNDWATER, VADOSE AND SURFACE WATER MONITORING
<br />Table 3
<br />Preliminary Postclosure Maintenance Cost Estimate
<br />North County Recycling Center and Sanitary Landfill
<br />San Joaquin County, California
<br />(2024 dollars)
<br />ITEMS Quantity Units 2024 Unit
<br />Cost
<br />Subtotal Annual
<br />Cost
<br />Supplement
<br />Table
<br />N:\1North County\CalRecycle-LEA\JTDs\2024 Rev\Appendices\Appendix B - Closure PCMP\NC PCPCMP 10-30-2024 2024 PPCMCE
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